Five minutes after a power failure occurred in a data center, a CO2 system was automatically triggered. Which of the following caused the CO2 system to start?

Question

Options

• AHigh temperatures activated the fire suppression system.
• BRPO settings were configured to be applied in a short time frame.
• CA cooling system set off the CO2 system in order to protect the equipment.
• DRTO settings were configured to be applied in a short time frame.

• A
  73% (16)
• B
  5% (1)
• C
  5% (1)
• D
  18% (4)

Explanation

Option A is correct because CO2 suppression systems are part of a data center's fire suppression infrastructure, triggered by fire detection sensors (heat, smoke, or flame detectors). A power failure can cause equipment to overheat or spark electrical fires, generating high temperatures that automatically activate the suppression system - this is a standard, pre-configured safety response.

Why the distractors are wrong:

• B (RPO) - Recovery Point Objective defines acceptable data loss thresholds in disaster recovery planning; it has no mechanism to trigger physical fire suppression hardware.
• C - Cooling systems (CRAC/HVAC) are entirely separate from fire suppression systems; they regulate temperature but do not activate CO2 releases.
• D (RTO) - Recovery Time Objective defines how quickly systems must be restored after an outage; like RPO, it's a planning metric, not a physical trigger.

Memory tip: When you see CO2, Halon, or clean-agent suppression systems on the exam, always think fire suppression = heat/smoke sensors, not DR metrics (RPO/RTO belong in business continuity questions, not physical safety questions).

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